Changes in the supermolecular structure of wool fibers, particularly those on the level of the microfibril-matrix complex, are analyzed using the small-angle x-ray scattering method (SAXS). The interfibrillar distances increase after dyeing; conformation changes within disulfide bonds are also suggested, caused by a chemical reduction of the fiber. Internbrillar distances decrease in dyed fibers treated with a solution of natural sweat.
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